YDbDr
Colour space used in the SECAM analog color TV standard / From Wikipedia, the free encyclopedia
YDbDr, sometimes written , is the colour space[1] used in the SECAM (adopted in France and some countries of the former Eastern Bloc) analog colour television broadcasting standard.[2][3][4] It is very close to YUV (used on the PAL system) and its related colour spaces such as YIQ (used on the NTSC system), YPbPr and YCbCr.[5][6]
is composed of three components: , and . is the luminance, and are the chrominance components, representing the red and blue colour differences.[7]